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Finding the Fourth Proportional to 5,641,881.76, 7,785,595.56 and 3,063,509.20

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Solution

The fourth proportional to 5,641,881.76, 7,785,595.56 and 3,063,509.20 is: 4,227,533.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,641,881.76 : 7,785,595.56 = 3,063,509.20 : x
  2. Step 2: Convert to fraction form
    5,641,881.76/7,785,595.56 = 3,063,509.20/x
  3. Step 3: Cross multiply
    5,641,881.76x = 7,785,595.56 × 3,063,509.20
  4. Step 4: Simplify right side
    5,641,881.76x = 23,851,243,625,539.15
  5. Step 5: Solve for x
    x = 23,851,243,625,539.15/5,641,881.76
  6. Step 6: Final answer
    x = 4,227,533.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.